Continuing our top 10 ranges, today we will write about top 10 largest cities in the world by land area.
The head of NASA submitted the draft of the budget of agency for 2014. The total amount of the required budget of space agency for 2014 fiscal year makes 17,7 billion dollars. By the words of astronomers using available breakthrough technologies, NASA develops the first mission in the history on identification, capture and asteroid towage. This mission will bring research of a space and human knowledge to new level, will help the astronomers to protect a native planet and will approach them to sending people for an asteroid. The task of project is to take a small asteroid and to transfer it to a circumlunar orbit. Flight of astronauts on an asteroid then will be provided with help of NASA carrier rocket “System of space starts” (Space Launch System) and the Orion spacecraft. For a start, the probe, which will pursue and will take approximately 25-foot (8 meters) the asteroid, will be pilotless. It will receive a food from solar electric motors, which generate draft at the expense of acceleration of the loaded particles called by ions. Pilotless test start of Orion is planned for the next year. Ionic engines were used and on other probes of NASA, including Dawn, which spent recently year in an orbit of a huge asteroid of Vest. But engineers will have to develop the advanced version as it will be towage of the 500-ton space rock throughout million miles. Then the asteroid will be towed off to a stable orbit of system Earth-Moon, where astronauts will be able to visit and study it. The astronauts said that they know nothing about approximately from 50 to 100 largest asteroids in vicinities of Earth and about several thousand asteroids with a diameter over 140 meters. Just today they reported about detection of an asteroid approximately two kilometers in size. According to scientists, collision of Earth with an asteroid with a diameter of one kilometer can lead to death of a civilization. In NASA claim that yet didn’t find any object, which would threat our planet in the near future.
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